Enjoy Envelope Shaping and Equalization with VizualSynth VSTi Synthesizer
VizualSynth is a VSTi synthesizer or SoftSynth.
You can also use it as a stand-alone instrument connected to a MIDI keyboard or sequencer and it will respond to the full range of MIDI commands.
VizualSynth is intended to teach you about things like envelope shaping and equalisation in a visual way.
You can see what your envelope and EQ shapes look like and use the mouse to alter them on-screen visually rather than just sliding controls up and down.